Multiple totalizer attachment for typewriters



Oct. 27, 1931. M. sAMBuRG ET AL MULTIPLE TOTALIZER ATTACHMENT FOR TYPEWRITERS 3 Sheets-Sheet 1 Hui/o kann,

Nh. NNN 5% Nw un w Origina Filed Jan. 24, 1920 Oct. 27, 1931. M. sAMBuRG ET AL. 1,829,543

MULTIPLE TOTALIZER ATTACHMENT FOR TYPEWRITERS original Filed Jan. 24, 1920 s sheets-sheet 2 0ct. 27, 1931. M. sAMBuRG E'r Ax. 1,829,543

MULTIPLE TOTALIZER ATTACHMENT FOR TYPEWRITERS Original Filed Jan. 24, 1920 5 Sheets-Sheet 3 Fig. 7l

Patented Oct. 27, 1931 'UNITED STATES PATENT ori-ICE MAURICE SAMBUBG AND JULIUS C. HOCHMAN, F NEW YORK, N. Y.

MULTIPLE TOTALIZER ATTACHMENT FOR TYPEWRITEBS Application led January 24, 1920, Serial No. 353,830. Renewed May 12, 1928.

This invention has as one of its objects to provide a mechanism, applicable to a typewriter, in such manner as to actuate the numeral keys thereof and by such means operate one or more of a plurality of totalizers, arranged to show various lists used in accounting, billing and bookkeeping, as the accretion of items, charges, payments, discounts, balances, etc., etc., in detail as may be desired, the mechanism being an improvement, by reason of its increased scope, capacity and general utility, over that disclosed in the patent Granted to us November 30, 1926, bearing N o. ,609,205, in which the structural details are fully set forth.

A further object is to provide such attachments in forms which may be readily attached to any ordinary typewriting machine without damage or change to the same, and which in no manner interferes or conflicts with its usual, customary functions in writing either alphabetical characters or numerals, the type and keys of the machine being used independently of, or conjunctively with, the attachment as desired.

Another object is to provide a device capable of performing all of the several functions of competitive devices in a satisfactory manner, the device being relatively inexpensive in construction and capable of long and continued service.

These and corresponding objects are attained by the novel construction and combination of parts, hereinafter described and shown in the accompanying drawings, forming a material part of this disclosure, and in which Figure l is a horizontal longitudinal sectional view of a mechanism made in accordance with the invention, the section being im-v mediately below the cover plate. n

Figure 2 is a partial vertical sectional and front elevational view of the same.

Figure 3 is a side elevational view showing the apparatus as applied to a typewriting machine.

Figure 4 is an enlarged transverse sectional view taken on line 4 4 of Fig. 2.

Figure 5 is a similar sectional view taken on line 5--5 of Fig. 2.

Figure 6 is another sectional view taken on line 6 6 of Fig. 2.

Figure 7 is another like sectional view taken on line 7-7 of Fig. 2.

Figure 8 is a fragmental longitudinal sectional view taken through certain of the totalizers.

Figure 9 is an enlarged transverse sectional view taken approximately on line 9-9 of Fig. 8.

Figure 10 is a similar sectional view taken on line 10-10 of Fig. 8.

Figure ll is a fragmentary partial side and sectional view showing the mutilated totalizer carriage actuating ratchet wheel.

Figure l2 is a fragmentary sectional view similar to Fig. 9, but showing a modification thereof.

Referring to the drawings in detail, particularly Fig. 3, the numeral 20 designates in general a typeu'riting machine having all of the usual parts, including upper and lower case alphabetical, and numeral keys 21, with their levers operatively engaged to perform their customary functions.

T he mechanism, in the form of an attachment, is secured to the upper front part of the machine in such position as to avoid obscuring any essential part, or interfering with the use of the key board, or mutilating or disguring the machine in any manner.

A plate base 25 is secured by screws in front of the type basket, in a vertical plane, its parallel upper and lower edges being horizontal and level. Formed in the front of the plate 25 are ten vertical guide grooves 26, spaced to agree with the typewriter numeral key levers 22, including the lower case letter l, used Valso for the numeral 1. v

Slidable in the grooves are bars 28, held therein by a cross strip 29, their lower ends resting lightly and unconlinedly upon the key levers, and having outwardly extending finger pads 30 displaying numerals from 0 to 9, inclusive, these pads being arranged for convenience of access. n

The upper portions of the bars 28 extend into a casing, generally designated by the numeral 33, and terminate in angles 31, arranged in a uniform horizontal row therein.

The casing 33 is secured to the front of the plate 25 and extends across the entire front of the machine as indicated.

Fixed in the casing are support plates 34 and 34, near the right and left hand ends respectively, and j ournalled near their upper front curved corners is a shaft 35, extending through the right side of the casing and provided with a knob 3G by which it may be turned.

Another shaft 38 is rotatably mounted in the plates nearly at their centers, while also extending across near their bottoms is a fixed rod 39.

Fixed `to the shaft 3S, adjacent the inner surface of the plates 34 and 34', are spur gears 40 engaging with racks 41, formed on the front edges of extensions 42, bent forward at right angles from a plate 43, limited to slidable movements up or down adjacent to the support plate 25, by reason of movement imparted by the angular ends 31 of the numeral key bars, the plate, which extends lengthwise Within the casing, being returned to a normal raised position by springs 47 near its ends, and caused to movel in a bodily uniform manner bv the equalizing gears and racks 40 and 41. The plate 43 may also be directly actuated by a back space or resetting key 44 whenever desired, as will be further on explained.

Adjacent the plate 43 is another longitudinal plate 45 having a plurality of steps 4G on its upper edge, corresponding to the numerical value of the key depressed, and carrying at its extreme ends pairs of opposed inner and outer racks 48 and 50, either pair being independently engageable with spur pinions 51 fixed on the ends of a tubular sleeve 52, slidably mounted on the shaft 38 and shiftable thereon by an extending lever 53.

As the angular ends 31 also extend over the plate 45 motion is communicated to it by depressing' the numeral key bars 28 and rotary motion conveyed to the sleeve 52 in either direction, according to the position of the shift lever 53, while at the same time the pinions and racks act as equalizers for the plate 45.

Circumjacent to the sleeve 52, on the shaft 38, is another tubular sleeve 55 of lesser length and having slidably attached at its right hand end an annularly recessed collar 50, engage-d by the forks 57, pivoted on the pin 5S, the forks being actuated by an operating lever 59 extending through the casing, and thus transmitting motion to the slidable actuator gear 64.

Also fixed on the sleeve 55 are spur gears 61, 62, 63, which with the gear 64 are adapted to actuate the four totalizers shown, the wheels of which are rotated in proportion to the depression of the stepped plate 45, as further on described.

In the lower edge of the plate 45 are a series of recesses (36, differing 1n extent of .length and arranged in register with the bars 28, adapted to limit the downward movement of the plate and preventing over travel due to inertia.

These slots receive the upper ends of detent levers 67, the lower ends of the levers engaging in slots (58, in the bars 28 and are normally held ont of contact by springs (i5). The detent levers are spaced apart by the spacing sleeves 70, which are fixed on the rod 39, and are operated by the depression of the key bars in an obvious manner.

The totalizers, of which four are preferably used, identified by letters A, B, C and D, are essentially alike in their construction.I except the fourth totalizer l), which preferably has more totalizer Wheels, and are mounted on the shaft 35, each consists of a plurality of discs or centers 100 having integral lateral extensions 101 on one side, upon which are formed ten peripheral teeth 102.

'lhese teeth are .engageable by a single tooth 103, formed with a pawl 104 pivoted by a pin 105 fixed in the side of the adjacent wheel, and normally held out of engagement by a. curved flat spring 106, held by the pin 107' to the adjacent Wheel at al point opposite the pin 105.

The tooth 103 is caused to engage the spaces between the teeth 102, one at each revolution, of the adjacent element and perform a tens-carrying operation by reason of a lug 108, formed with the pawl 104, and contact-able, when traveling in either direction` with a cam-like projection 110 formed with a. comb-like plate 111 secured to the inner surface of the totalizer frame 112.

Secured over the bodies or centers 100 are tubular casings 115, and integrally fornied with the centers 100 at one end thereupon, are ten teeth 116, engageable with the actuating gears ($1. (52, 63 and 64, as the totalizers are moved lengthwise of the shaft.

In order to provide means for resetting three sets of the totalizer wheels at zero, the shaft is grooved longitudinally a corresponding length, forming a key-way 118, into which may enter a ball or sphere 119` pressed b v the spring 120 contained in the opening 121 in the bodies 100, the lsprings being covered by the casings 115, in such manner as to engage the slot 118, with sufiicient force as to turn the wheels in one direction when the shaft 35 is rotated by twirling the knob 36.

This motion of the shaft however does not affect the totalizer at the extreme right, which is reset by subtracting the amount shown, While recording the total upon the typed sheet.

The totalizers are moved lengthwise on the shaft by a rack 125, fixed on the back of the frame 112, the same being enmeshed with a ar 126 fixed on the end of a transverse splndle 127 journalled partially in a bracket 128 and the back plate 25.

Also fixed on the spindle 127 is a mutilated ratchet wheel 130, havin an intermission of its teeth, `as at 131, (see ig. 11) the ratchet wheel being arranged closely adjacent the back space plate 43, which is provided witla slot 132 permitting the plate to move wlth reference to the spindle.

Carried on the plate 43 is a spring actuated pawl 133, pivoted on the pin 134, the free end of the pawl being held in operative position by a lixed pin 135 so as to engage the teeth when the spindle has been partlally turned, but riding free along its eriphery at the blank space 131, thus permitting the plate 43 to be moved at certain times without conveying motion to the -spindle and thus to the totalizer frame, as when the machine is in an inoperative condition.

A drum is journalled within the casing 33, near its right hand end, on a spindle Y 141, to which is attached the inner end of a fiat spirally coiled spring 142, by which the drumj i's` rotated,I and attached to wind upon t S' a "le'ible .tape

143,; engaging-fthe ot,y rame? in' manner ias' to" dfaxvtheitotaliies v"collet v totheright.\ y

A plliiality'ivof Tepatf 146, :147; 214e; iaevanyafffitoi pin cannidi iin loopbra'cket the exterior offfth'e dr'l'lmfi at their 'fies/'enva an" longestilevel'is e.,y ,x

lectedf stopihas'f ibeen-i"bou`y t positiomfiiEach'lever sto'l is p range'dlwith tr shown. landi claimed the patntigiated to us onffllNovemberfi 30;1l'-'1-926,'""'bearing No. 1,609,205.v

Formed with the outer stop lever 150 is a raised rojection 151 limiting the ultimate travel o1P the totalizers to the right, in its last or highest decimal position. The angular position of the carrying bracket 152 is controlled by a hand lever 154 so that the contacting ends of thel stops may be collectively moved to bring one yor more of the tota-lizers into operative engagement with the actuator gears 61, 62 and 63, which vary in width. s

The lever 154 is shown in Fig. 2 in its extreme position to the left, in which all of the totalizers are disengaged from the actutotalizer B with gear 62. `When lever 154 is moved tothe extreme position toward the right, as indicated by the eXtreme dot and dash line, gear 61 is also meshed with the corresponding totalizer A, so that all three of the totalizers, A, B and C, corresponding to gears 63, 62 and 61 are brought into mesh. Thus, depending upon the position of the lever 154, all of the totalizers A B and C are disengaged totalizer C alone s engaged or the two totalizers C and B are engaged or all three totalizers A B and C are engaged. The Atotalizer D furthest to the right is engaged b the actuator gear 64 moved independent y by the lever 59, this totalizer alone being reset by directsubtraction.

Operatively engaging the stop levers are individual keys 155, 156, 157, 158, 159 and 160 bearing designations representing decil eepdsofadiaentewes e, ytween adjacent;l

43,6 which'is' accom thousands key 157, which permits the totale;V` izer to move to the right, under-the pull of the spring, until contact is made with the stop 148, moving the totalizer four places.

The key bar 28, carrying the numeral 4 is pressed, causing the typewriter to print, while coincidently the plates 43 and 45 are moved down, by engagement with the hook ends 31 of the bars 28, in parallel lines, due to the equalizing devices at their ends. the racks 48 or 5() rot-ating the pinions 51, transmitting rotary motion to the actuator gears and by them to the fourth wheels (counting from the right of the totalizer) causing them to display the numeral 4.

Upon being released the plates are returned to a normal raised position by the springs 47, the pawl 133, carried on the plate 43, engagmg with the teeth of the ratchet wheel 130,

turning the Gear 126, which being engaged with the totalizer frame rack 125, moves the totalizers against the pull of the spring 142, one space so that the frame ahuts against the neXt stop 146 automatically.

The key bar, representing the numeral 3, is then depressed, causing a corresponding, simultaneous printing and movement of the next adjacent numeral wheels of the totalizer at the right, setting up the figure 3, and obviously the remaining figures (5 and 2 are similarly printed and disclosed coincidently on the totalizers.

The totalizers now being disposed so as to display units, the hundreds key 156 is pressed, allowing the totalizer frame to be drawn by the spring into contact with the stop 147, whereupon the key bar carrying the numeral 7 is actuated, the paper in the typewriter having previously been adjusted to present a proper line space, and also to cause correct decimal vertical registration. the figure 7 is printed and added to the number 3 on the totalizer wheels, causing them to register Zero and, due to their interengaging construction, carry l to the wheels adjacent on the lett, disclosing 5062 as the partial sum.

Depressing the key bar 2 prints and adds 2 to 6, showing 5082 and finally depressing the key bar 8 adds 8 to 2, which, by carrying means employed, discloses the full sum of 5090, which, after drawing a line if desired on the paper in the typewriting machine, may be transferred by the normal use of the typewriter keys. together with any signs, or symbols as may be desired, as for 1nstance the dollar mark, etc.

Thus the correct sum appears through openings in the casing and has also been written by the keys of the typewriter.

In the modified form of totalizer shown in Fig. 12 a spring 10G acts to press the V shaped tooth of the pawl 104 into engagement with the teeth 102 of the ratchet wheel, the tooth of the pawl touching at its extreme point and along one of its angular edges. T he hump 108 is held down by the projection 1.1() when the gear to which the pawl is attached is driving, but when the ratchet wheel is driving, the pawl is raised, clearing the projection 110 and allowing the ratchet to click past the pawl without conveying motion to it.

Three of the totalizers may now be cleared hy the knob 36, and if desired, the sum 5090 may be kept in the totalizer at the eXtreme right. this totalizer thus acting as a continuous accumulator otindividual totals. Such a continuous accumulator is used Jfor recording daily totals,- and is reset at the end of the day by subtraction.

The disclosure is however to be regarded as descriptive only and not as restrictive or limitative of the invention, of which obviously an embodiment may be constructed including many minor modiiications Without depating from the general scope herein indicated and mentioned in the appended claims.

We claim:

1. A self-contained computing mechanism comprising a casing adapted to be engaged with a typewriter, a carriage in said casing, a plurality of totalizers in said carriage, a single-tractive means for said carriage and al1 of said totalizers, driving means for all said totalizers, a single set of bodily shiftable decimal limit stops for simultaneously setting all said totalizers, and means 4for returning said totalizers to their initial position.

A combined typewriter and computing mechanism comprising a typewriting mechanism, a self-contained computing unit secured to said typewriting mechanism, means for operating the number keys of said typewriting mechanism independently of the computing mechanism, means for operating the computing mechanism concurrently with the numeral type bars of the typewriting mechanism, said computing mechanism having a plurality ot totalizers, means for clearing certain of said totalizers collectively, and means for clearing one of said totalizers'by subtraction and simultaneously printing the total registered by the typewriting mechamsm.

3. A mechanism having a plurality of totalizers, a keyboard connected for simultaneous actuation of all of said totalizers, said mechanism adapted to be mounted upon a typewriting machine of standard construction with the numeral key levers of the typewriter in the path of movement of the corresponding keys of the computing mechanism, said mechanism including means for clearing a plurality of totalizers collectively,

and means whereby one of said totalizers may be cleared by subtraction.

4. A computing mechanism comprising a casing engaged with a typewriter, a plurality ot totalizers movable therein, selective driving means therefor, a stepped plate, means carried by said plate for actuating said driving means and said totalizers, and means for operating said plate together with the numeral keys of said typewriter.

5. A computing mechanism engaged with a typewriter over the keys thereof, a plurality of totalizers in said mechanism, means for alternatively connecting one or more ot' said totalizers for operating independently of the other totalizers` and means for concurrently operating said totalizers and the numeral keys of the typewriter, and a single n'ieans crxiperative with said totalizers tor decimally spacing the same.

6. A computing mechanism comprising a casing engaged with a typewriter, totalizers movable therein, totalizer selective driving means therefor, a longitudinally movable stepped plate, means carried thereby for lli) . ing said totalizers and said accumulator to engage their numeral wheels with said driving gears.

8. A computing mechanism comprising a casing engaged with a typewriter, totalizers movable therein, a rotatable shaft mounted longitudinally in said casing, driving gears for each totalizer, said gears being of different thickness, and fixed on said shaft, means for engaging one or more of said totalizers with said gears, and means for actuating said gears coincident with the typewriter numeral keys.

9. A computing mechanism, in engagement with a typewriter comprising. a movable carriag'e. a plurality of totalizers in saidcarriage, selective driving means engageable with one or more of said totalizers, and keys for actuating the engaged totalizers, said keys resting unconfinedly but operatively on the numeral keys of the typewriter.

10. A computing mechanism combined J with a typewriter including a carriage and a plurality of totalizers. driving means therefor, means for selectingr the totalizers to be driven, means for decimally setting said totalizers. cooperative with said selecting means, a single tractive means for said carriage, and means for returning said carriage to its initial position.

1l. A computing mechanism for a type- Hwriter operably engaged therewith entirely independent of its functions including a plurality of totalizers. a single tractive means for all of said totalizers. a single series of shifting decimal stops for all said totalizers,

4and means for shifting said stops.

12. A computing mechanism for a typewriter operably engaged therewith entirely independent of its functions including a plurality of totalizers, a single tractive means for all of said totalizers, a single series of shifting steps for said totalizers, gears engageable with tbe numeral wheels of said totalizers. and means for shifting said stops so as to cause engagement of one or more of said totalizers with said gears.

' 13. A computing mechanism having a carriage and a plurality of totalizers movable therein, tractive means for said carriage. and a series of stops which may be singly and collectivelv operated for limiting the advancement of said carriage, said stops being bodily movable to alter the stationa .position of said carriage and of said tota izers.

1.4. A omputing mechanism inclusive of a casmg engaged with a typewriter, a carriage and a plurality of totalizers movable in said casing, tractive means for said carriage, a series of stops for said carriage, and means for actuating said stops singlyorcollectively for limiting the advancement of said carriage, said stops being bodily movable to alter the stationary position of said carriage and of said totalizers.

15. A computing mechanism for a typewriter, operably engaged therewith independent of its function, a slidable carriage containing totalizers operatively engaged in said mechanism, lever stops inclined upwardly at their operative ends against which said carriage abuts, and means for shifting said stops into different positions.

16. A computing mechanism for a typewriter operably engaged therewith independent of its functions, a carriage slidably mou'nted therein having totalizers operatively engaged in said mechanism, lever stops inclined upwardly at their free ends against which said carriage abuts, means for actuating said stops independently, the first of said stops holding the carriage and its totalizers until the stops beyond the selected one are disand(v means for shifting said stops l l, lJ 11o operably en'-,V lhaving a letterfy i, saidf'cbrrlputing mechanism., comprisi g a casing, a carriage in sa'idl'cfasfing,lv

totalizers'mo ble herein'. lan independiit,v

t a ,.g

,ft kanni.neans@forengagingibnefor in re a ofi-saidf.totalizersfwithi:said: driving "ge l camputfng; '.fmchanisms; combinedH it pey jterhavingletterandwnmeralu keys. a movable@ ytype'w Yiter: carriagefzand a means actuated by said-gev l.forimovings'aidp, carriage at spacedirrtgnva skto; thefl ft.a carriage in said computlnglnechanismgqaflplug. i. ralitv of totalizers therein having indiyidfualg ,1; drive gears, computing keys for actuating?,

the wheels of said totalizers, and means controlled by said keys for returning said last 133 mentioned carriage to the left in a step by mitting arrangement of the computed nustep movement and coincidently operating merals in any positlon on a typed sheet.

the numeral keys of the typewriter.

ln testimony whereof we have signed our 2l. A computing mechanism engaged with llames to this specification.

a typewriter at the upper front part thereof, a plurality of totalizers movable longitudinally in said mechanism, tractive means for said totalizers, decimal spacing stops, means for actuating said stops whereby said totalizers are initially positioned, gears for actuating the wheels of said totalizers, and numeral keys for coincidently actuating said gears, the numeral keys of the typewriter, and a carriage shifting means, whereby the totalizers are advanced upon rotation of their numeral wheels.

22. A computing mechanism in engagement with a typewriter, comprising a. movable carriage, a plurality of totalizers in said carriage, a. driving gear for each of said totalizers. shiftable means engaging one or more of said totalizers to its driving gear. and keys for actuating the driving gears and the engaged totalizers. said keys being positioned non-interferingly but operatively above the numeral keys of the typewriter.

23. A computing mechanism including a plurality of totalizers, means for driving each of said totalizers` shiftable stop means for engaging said totalizers with said driving means, and additional means for disengaging the driving means for one of said totalizers in any position of said stop means.

24. A computing mechanism including a continuous accumulator and a plurality of totalizers all coaxially mounted, means for driving the continuous accumulator, means for driving each of said totalizers, shifting means for engaging the driving means for said continuous accumulator, individually, and means for engaging any number of totalizers with their driving means.

25. In a computing mechanism, a pluralitv of totalizers each comprising a group of wheels` driving means for each of said totalizers. and stop means shit-table by fractions of the width of a totalizer wheel for selectively positioning one or more totalizers tor operation.

26. In a combined typewriting and computing machine, a plurality of totalizers, each totalizer comprising a group of wheels, a driving gear for each of said totalizers. stop means shiftable by fractions of the width of a totalizer wheel for selectively positioning one or more totalizers for operation, and mea-ns for operating the selected totalizers and coincidently causing the typewriter to print the number selected.

27. A computing mechanism engaged with a typewriter, comprising a casing, totalizers movable therein, means for simultaneously actuating a predetermined group of said totalizers and said typewriter, said means per- MAURICE SAMBURG. JULIUS C. HOCHMAN. 

